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Showing posts with label REDOX TITRATION:. Show all posts
Showing posts with label REDOX TITRATION:. Show all posts

Thursday, August 3, 2023

The number of moles of KMnO 4​ reduced by one mole of KI in alkaline medium is:

Answer key : 2

An oxide, X2​O3​ is oxidized to XO4^−​ by Cr 2​ O 7^2−​ in acid medium. The number of moles of X2​O3​ oxidized per mole of Cr2​O7^2−​ is

Answer key: 3/4

One gram of the acid C 6​ H 10​ O 4​ requires 0.768 g of KOH for complete neutralization. How many neutralizable hydrogen atoms are in this molecule?

Answer key : 3

3 g of an oxide of a metal is converted to chloride completely and it yields 5 g chloride. The equivalent weight of metal is:

Answer key : 33.32

A metal carbonate on heating is converted to metal oxide and is reduced to 50% of its original weight. The equivalent weight of the metal is :

Answer key: 14

Friday, January 31, 2020

50 Cm3 of 0.04 M K2Cr2O7 in acidic medium oxidized a sample of H2S gas to Sulphur . The volume of 0.03 M KMnO4 required to Oxidize the same amount of H2S gas to Sulphur, in acidic medium is.


Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

50ml of KMnO4 is mixed with excess of KI the I2 liberated require 30 ml of 0.1M Na2S2O3 solution calculate the Molarity of KMnO4 solution

Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

829 gm of K2Cr2O7 and H2C2O4 reacts completely with 7/3 moles of K2Cr2O7 . (1) Calculate the moles of each in mixture. (2) Calculate the moles of NaOH required to react with above mixture.

Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

696 gm of Fe2O3 and FeO reacts completely with 158 gm of KMnO4 in acidic medium . Calculate the composition of mixture.

Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

Calculate the Molarity of H2O2 if 11.2 ml H2O2 require 30 ml of 0.5 M K2Cr2O7 for its Oxidation . also calculate the volume of strength of H2O2.

Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

Calculate the moles of KCl which required to produce 10 ml of Cl2 when reacted with KClO3 ?

Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

Calculate the moles of KMnO4 required for Oxidation of 1.25 moles Cu2S.

Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

Calculate the concentration of H2O2 if 20 ml H2O2 Solution react with 10 ml of 2M KMnO4 in acidic medium ?

Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

Calculate the mass of Fe3O4 required to react completely with 25 ml of 0.3 M K2Cr2O7?.

Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

Calculate volume of 0.05 M KMnO4 required to react with 50 ml of 0.1M H2S in acidic medium , given H2S oxidized to SO2?.

Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

Calculate the weight of K2Cr2O7 which reacts with KI to liberate 254 gm of I2 ?.(Cr=51.9961, I=127)

Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

Related Questions:

Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)

Tuesday, January 29, 2019

REDOX TITRATIONS:

LAW OF EQUIVALENT WEIGHT:
No of equivalent of A reacted = No of equivalent of B reacted = No of equivalent of C formed = No of equivalent of D formed
RELATION BETWEEN NORMALITY (N) AND MOLARITY (M):
SOME COMMON OXIDISING AGENT:
SOME COMMON REDUCING AGENT:

ILLUSTRATIVE EXAMPLE (1): Calculate the moles of KMnO4 required to reacting with 180 gm of Oxalic acid (H2C2O4). Also calculate the volume of CO2 at STP produce in the reaction? (K=39, Mn=55, Of=16)
SOLUTION:


ILLUSTRATIVE EXAMPLE (2): Calculate the weight of K2Cr2O7 which reacts with KI to liberate 254 gm of I2 ?.(Cr=51.9961, I=127)
SOLUTION:
ILLUSTRATIVE EXAMPLE (3): Calculate volume of 0.05 M KMnO4 required to react with 50 ml of 0.1M H2S in acidic medium , given H2S oxidized to SO2?.
SOLUTION:

ILLUSTRATIVE EXAMPLE (4): Calculate the mass of Fe3O4 required to react completely with 25 ml of 0.3 M K2Cr2O7?.
SOLUTION:

ILLUSTRATIVE EXAMPLE (5): Calculate the concentration of H2O2 if 20 ml H2O2 Solution react with 10 ml of 2M KMnO4 in acidic medium ?
SOLUTION:
ILLUSTRATIVE EXAMPLE (6): Calculate the moles of KCl which  required to produce 10 ml of Cl2 when reacted with KClO3 ?
SOLUTION:
ILLUSTRATIVE EXAMPLE (7): Calculate the moles of KMnO4 required for Oxidation of 1.25 moles Cu2S.
SOLUTION:
ILLUSTRATIVE EXAMPLE (8): Calculate the Molarity of H2O2 if 11.2 ml H2O2 require 30 ml of 0.5 M K2Cr2O7 for its Oxidation . also calculate the volume of strength of H2O2.
SOLUTION:
ILLUSTRATIVE EXAMPLE (9): 696 gm of Fe2O3 and FeO reacts completely with 158 gm of KMnO4 in acidic medium . Calculate the composition of mixture.
SOLUTION:
ILLUSTRATIVE EXAMPLE (10): 829 gm of K2Cr2O7 and H2C2O4 reacts  completely with 7/3 moles of K2Cr2O7 .
(1) Calculate the moles of each in mixture.
(2) Calculate the moles of NaOH required to react with above mixture.
SOLUTION:
ILLUSTRATIVE EXAMPLE (11): 50ml of KMnO4 is mixed with excess of KI the I2 liberated require 30 ml of 0.1M Na2S2O3 solution calculate the Molarity of KMnO4 solution.
SOLUTION:
ILLUSTRATIVE EXAMPLE (12): 50 Cm3 of 0.04 M K2Cr2O7 in acidic medium oxidized a sample  of H2S gas to Sulphur . The volume of 0.03 M KMnO4 required to Oxidize the same amount of H2S gas to Sulphur, in acidic medium is.
SOLUTION:
ILLUSTRATIVE EXAMPLE (13): What volume of 0.4 M Na2S2O3 would be required to react with the I2 liberated by adding excess of KI to 50 ml of 0.2 M CuSO4? (Ans= 25 ml).
SOLUTION: Try yourself .......
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